绝缘材料
絕緣材料
절연재료
INSULATING MATERIALS
2014年
3期
17-21
,共5页
宋红艳%黄兴溢%张军%江平开
宋紅豔%黃興溢%張軍%江平開
송홍염%황흥일%장군%강평개
聚乙烯%氧化镁%击穿强度%拉伸强度%热稳定性
聚乙烯%氧化鎂%擊穿彊度%拉伸彊度%熱穩定性
취을희%양화미%격천강도%랍신강도%열은정성
polyethylene%MgO%breakdown strength%tensile strength%thermal stability
对比研究了氧化镁/交联聚乙烯电缆绝缘复合材料和传统的交联聚乙烯材料的击穿强度、力学性能、形态与分布、热稳定性和结晶度。结果表明，与传统交联聚乙烯相比，纳米复合材料的直流击穿强度、交流击穿强度、拉伸强度和初始分解温度分别提高了约20%、8%、7%和10%，介电常数和介质损耗因数基本不变，表明氧化镁纳米粒子的加入可提高电力电缆绝缘材料的击穿强度、力学性能和热稳定性。
對比研究瞭氧化鎂/交聯聚乙烯電纜絕緣複閤材料和傳統的交聯聚乙烯材料的擊穿彊度、力學性能、形態與分佈、熱穩定性和結晶度。結果錶明，與傳統交聯聚乙烯相比，納米複閤材料的直流擊穿彊度、交流擊穿彊度、拉伸彊度和初始分解溫度分彆提高瞭約20%、8%、7%和10%，介電常數和介質損耗因數基本不變，錶明氧化鎂納米粒子的加入可提高電力電纜絕緣材料的擊穿彊度、力學性能和熱穩定性。
대비연구료양화미/교련취을희전람절연복합재료화전통적교련취을희재료적격천강도、역학성능、형태여분포、열은정성화결정도。결과표명，여전통교련취을희상비，납미복합재료적직류격천강도、교류격천강도、랍신강도화초시분해온도분별제고료약20%、8%、7%화10%，개전상수화개질손모인수기본불변，표명양화미납미입자적가입가제고전력전람절연재료적격천강도、역학성능화열은정성。
The breakdown strength, mechanical properties, morphology, thermal stability and crystallinity of MgO/cross-linked polyethylene(XLPE) nanocomposites and traditional XLPE material were compared and studied. The results show that compared with traditional XLPE material, the direct current(DC) and alternating current(AC) breakdown strength, tensile strength and initial degradation temperature(IDT) of the nanocomposites increase by 20%, 8%, 7% and 10% respectively, and the dielectric constant and dielectric loss factor change little, which indicate that the addition of MgO nanoparticles can increase the breakdown characteristic, mechanical properties and thermal stability of power cable insulating materials.
